# ss=input()
# ss='[1,2,3]'
# arr=eval(ss)
# arr=[1,2,3]

# ss="20 30 40 50"
# ss[:]
# arr=list(map(int , ss.split()))
# arr=list(range(10))
# "10"   '1'+ '0'
# num:int=10
# ss:str=""
# arr=list( '' )
# print(arr)

# for e in map(int , ss.split()):
#     print((e))
# rr=range(10)
# n=0
# for i in rr:
#     print('first',i)
#     n+=1
#     if(n>5):
#         break
#
# for ii in rr:
#     print('second',ii)

arr=[1,2,3,4]
arr=[1,2,1,2]

set_1={1,2,3,5}
print(sum(arr))
set_2=set_1
set_1={1,2,1}
for e in set_2:
    print(e)

